I would like to turn a cannister that will be about 6" in diameter and about 8" deep. It seems to me that doing a segmented turning will not only make it more interesting but easier to turn since I am effectively eliminating end grain.

I have two questions:
1. How should I handle wood movement in the bottom? Surely, I don't just stick a flat piece of wood down there. Won't it expand and split the whole thing? This will be for a powder (Slim Fast) so I don't want it to leak. I would think that a floating panel is out of the question.

2. Should I glue up all the segmented layers at once, do it in sections or one at a time?